On-line partial discharge monitoring and diagnostic system for power transformer
نویسندگان
چکیده
منابع مشابه
On-line Monitoring System Based on Principle of Electro-acoustic Monitoring for Transformer Partial Discharge
Partial discharge inside a transformer is mainly responsible for the insulation aging and damage of the transformer. However, partial discharge is usually accompanied by external signals like sound, light and electrical signals and detectable physical phenomena such as characteristical gas and dielectric loss. Therefore, it is of great significance to monitor online the external signals and phe...
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Based on the physical phenomena of optical effects produced by the partial discharge (PD) and on the characteristics of fluorescent fiber sensing of weak fluorescent signals, a PD measurement system using a fluorescent fiber sensor was designed. The main parameters of the sensing system were calculated, an experimental testing platform for PD simulation in the lab was established, and PD signal...
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Defects inside insulation of HV XLPE cable accessories can lead to partial discharge (PD) activity. When PD activity happens, leakage current may flow through the grounded line. To acquire the PD current signal, one practicable and effective method is placing a high frequency current transformer (HFCT) winding the grounded line. In order to measure the insulation degradation, a partial discharg...
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ژورنال
عنوان ژورنال: Tsinghua Science and Technology
سال: 2005
ISSN: 1007-0214
DOI: 10.1016/s1007-0214(05)70125-5